Only an hour? That's hardly anything, unless it's a T20 game. For full-length games (4 or 5 days), a good batsman looks to last at least a full session (2 hours plus), preferably a whole day's play (c. 8 hours with breaks, sometimes more.) Incidentally, it's 'batter' only in Australia. More or less everywhere else it's 'batsman'. A batter is a wet mixture of eggs, flour and milk or water.
Ok,ok, I’m still learning the lingo.